The Red Hot Crosspro 100FX Broadhead is engineered for crossbows shooting over 300 fps and constructed of 100% steel solid machine ferrule with stainless steel blades and solid blade locking system. Shortest broadhead in length makes it closest to a field point profile ,and with the large vents in blade reduces broadhead planing. Weight 100 grains. 1 1/16 cutting diameter. 3 per pack.